code: def GNNLayer(dim_in, dim_out, has_act=True):
      return GeneralLayer(cfg.gnn.layer_type, dim_in, dim_out, has_act)
  
file_path: pytorch_geometric/graphgym/custom_graphgym/stage/example.py
imports: import torch.nn
  import torch.nn.functional
  from torch_geometric.graphgym.config import cfg
  from torch_geometric.graphgym.models.layer import GeneralLayer
  from torch_geometric.graphgym.register import register_stage
label_desc: Use image node_id 1 for calling a global function with example usage: GNNLayer(dim_in, dim_out, has_act) and returns: GeneralLayer